Granted Patent
Utility
US 4,897,936 · App. 07/156,176
Shoe sole construction
Inventor:
Rory W. Fuerst
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Feb 16, 1988
Inventor
Rory W. Fuerst
Assignee (at issue)
Kaepa, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.